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- MPL-A320P-SJ74AA
- Servo Motor
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- 100 mm
- 3.7 kg
- Xiamen, China
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Product Overview
The Allen Bradley MPL-A320P-SJ74AA Servo Motor is a premium low-inertia AC brushless servo motor designed to provide exceptional precision, dynamic response, and long-term reliability for industrial motion control applications. As a member of the Allen Bradley MP-Series (MPL) servo motor family, this model is optimized for high-speed positioning, synchronized multi-axis motion, and continuous-duty operation in demanding automation environments.
Designed for seamless integration with Allen Bradley Kinetix servo drive systems, the MPL-A320P-SJ74AA features a 100 mm frame size, 230 V AC voltage class, 5000 RPM rated speed, a single-turn high-resolution absolute encoder, keyed shaft, and an integrated 24 V DC holding brake. These features provide excellent positioning accuracy while ensuring safe load holding during machine shutdown or power interruption.
Its compact mechanical design, high torque density, and advanced feedback technology make it an ideal choice for robotics, packaging machinery, CNC equipment, semiconductor manufacturing, pharmaceutical production, electronic assembly, and automated production lines requiring precise and repeatable motion control.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley |
| Model | MPL-A320P-SJ74AA |
| Product Series | MP-Series MPL |
| Product Type | AC Brushless Servo Motor |
| Voltage Class | 230 V AC |
| Frame Size | 100 mm |
| Magnet Stack Length | 50.8 mm (2.0 in.) |
| Rated Speed | 5000 RPM |
| Continuous Rated Power | 1.3 kW |
| Continuous Stall Torque | 3.05 Nm |
| Peak Torque | 7.91 Nm |
| Feedback Type | Single-turn High-Resolution Absolute Encoder |
| Feedback Protocol | Hiperface |
| Shaft Type | Keyed Shaft |
| Brake | Integrated 24 V DC Holding Brake |
| Connector Type | SpeedTEC DIN Connector, Right Angle, 180° Rotatable |
| Mounting | IEC Metric Flange Mount |
| Enclosure Rating | IP50 (IP66 with optional shaft seal) |
| Weight | 3.7 kg |
| Maximum Operating Temperature | 40°C |
| Application | Industrial Motion Control Systems |
Function and Working Principle
The Allen Bradley MPL-A320P-SJ74AA servo motor converts electrical power supplied by a compatible servo drive into highly accurate rotary motion through a closed-loop feedback system. The motor continuously communicates with the servo controller using its integrated single-turn absolute encoder, allowing precise monitoring of shaft position and rotational speed.
The servo controller compares the programmed motion profile with the actual motor position and automatically adjusts current output to eliminate positioning errors in real time. This continuous feedback process provides excellent positioning accuracy, stable speed regulation, and smooth torque output even when load conditions change rapidly.
The integrated 24 V DC holding brake automatically locks the motor shaft when electrical power is removed, preventing unintended movement and improving operational safety in vertical axis and suspended-load applications.
The motor provides several performance advantages, including:
- High-speed acceleration and deceleration
- Accurate positioning control
- Smooth torque delivery
- Excellent repeatability
- Fast dynamic response
- Stable closed-loop operation
These capabilities make the MPL-A320P-SJ74AA an excellent solution for precision manufacturing equipment requiring reliable and synchronized motion control.
Role in Industrial Control Systems
Within industrial automation systems, the MPL-A320P-SJ74AA functions as the primary motion actuator responsible for converting electronic control commands into precise mechanical movement.
The motor supports a wide range of industrial motion functions, including:
- Precision positioning
- Speed regulation
- Torque control
- Electronic cam synchronization
- Multi-axis coordinated motion
- Indexing operations
When integrated with Allen Bradley Kinetix servo drives and Logix controllers, the motor enables highly efficient machine automation, improving production accuracy, reducing cycle times, and increasing overall equipment productivity.
Industrial Applications
The Allen Bradley MPL-A320P-SJ74AA is widely used in industrial sectors including:
- Packaging and Filling Equipment
- Robotics and Automated Assembly
- CNC Machine Tools
- Semiconductor Manufacturing
- Electronics Production
- Pharmaceutical Machinery
- Food and Beverage Processing
- Printing and Converting Equipment
- Material Handling Systems
- Conveyor Automation
- Pick-and-Place Machines
- Textile Manufacturing
- Automotive Production Lines
- Warehouse Automation
- Precision Manufacturing Systems
Its compact dimensions and integrated holding brake make it particularly suitable for vertical axis applications and machinery requiring secure load retention.
Installation and System Integration
Correct installation is essential for achieving maximum performance and service life.
Recommended installation procedures include:
- Mount the motor securely using the IEC metric flange.
- Align the motor shaft accurately with the driven mechanism.
- Install suitable flexible couplings to minimize mechanical stress.
- Connect motor power and encoder cables using the SpeedTEC connector system.
- Configure servo parameters within the Kinetix drive.
- Test encoder feedback before commissioning.
- Verify holding brake operation before machine startup.
- Maintain adequate ventilation and cooling around the motor.
Following these installation practices helps improve positioning accuracy, reduce vibration, and extend the operational life of the entire motion control system.
Compatible System Components
The MPL-A320P-SJ74AA is commonly integrated with:
- Allen Bradley Kinetix 2000 Servo Drives
- Allen Bradley Kinetix 300 Servo Drives
- Allen Bradley Kinetix 350 Servo Drives
- Allen Bradley Kinetix 5500 Servo Drives
- Allen Bradley Kinetix 6000 Servo Drives
- Allen Bradley Kinetix 6200 Servo Drives
- Allen Bradley Kinetix 6500 Servo Drives
- Allen Bradley Kinetix 7000 Servo Drives
- Allen Bradley Ultra 3000 Servo Drives
- Allen Bradley ControlLogix Controllers
- Allen Bradley CompactLogix Controllers
- Allen Bradley GuardLogix Controllers
- MP-Series Power Cables
- MP-Series Feedback Cables
- Motion Interface Modules
- Precision Planetary Gearboxes
Together, these components create a complete high-performance motion control platform capable of delivering accurate positioning, synchronized multi-axis control, and reliable industrial automation.
Recommended Alternative Models
Depending on application requirements, the following Allen Bradley servo motors may also be considered:
| Model | Type | Key Feature | Application |
|---|---|---|---|
| MPL-A320P-SJ72AA | AC Servo Motor | Single-turn Encoder, No Brake | Standard Motion Control |
| MPL-A320P-MJ74AA | AC Servo Motor | Multi-turn Encoder, Holding Brake | High-Precision Automation |
| MPL-A320P-MK74AA | AC Servo Motor | Keyless Shaft with Holding Brake | High-Speed Machinery |
| MPL-A320P-MK72AA | AC Servo Motor | Keyless Shaft, No Brake | Precision Motion Systems |
| MPL-B320P-SJ74AA | AC Servo Motor | 460 V AC Version | Heavy Industrial Equipment |
Key Advantages
- Compact 100 mm frame design
- High-performance low-inertia rotor
- Single-turn high-resolution absolute encoder
- Integrated 24 V DC holding brake
- Rated speed up to 5000 RPM
- Excellent positioning accuracy and repeatability
- Smooth torque output and rapid dynamic response
- Compatible with Allen Bradley Kinetix motion systems
- Designed for continuous industrial operation
- Ideal for precision multi-axis automation applications
Technical FAQs
What is the primary function of the MPL-A320P-SJ74AA?
It provides accurate rotary motion for industrial automation equipment operating within closed-loop servo control systems.
Does this servo motor include a holding brake?
Yes. The MPL-A320P-SJ74AA is equipped with an integrated 24 V DC holding brake, allowing the motor to securely maintain shaft position when power is removed.
Which control systems are compatible?
The motor is designed for use with Allen Bradley Kinetix servo drive platforms and Logix-based motion controllers, providing reliable positioning and synchronized motion for a wide variety of industrial automation applications.
Conclusion
The Allen Bradley MPL-A320P-SJ74AA Servo Motor is a high-performance industrial motion control solution designed for applications requiring exceptional positioning accuracy, rapid response, and dependable long-term operation. Featuring a 100 mm frame size, 230 V AC operation, 5000 RPM rated speed, 1.3 kW continuous output, a single-turn high-resolution absolute encoder, keyed shaft, and an integrated 24 V DC holding brake, it delivers outstanding motion performance across a broad range of industrial applications.
Whether installed in robotic systems, packaging equipment, CNC machinery, semiconductor production lines, pharmaceutical manufacturing, or automated assembly systems, the MPL-A320P-SJ74AA provides the precision, efficiency, and reliability required for today’s advanced industrial automation environments.